I love that idea because it could easily be replicated on purpose to make sweet potato breeding much easier. But I love the idea too much, and I’m way too inexperienced, to be impartial about whether it’s likely. 
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Ha ha ha, I’m fine with you being a buzzkill. Buzzkill away! You’re the expert, so I value your thoughts. Your thoughts on this matter are likely to be correct.
Ooh, what a great video! Thank you!
I watched some more of your videos, and subscribed to your YouTube channel. 
A few interesting things stood out to me.
In the video you linked, I found it particularly useful information that you have found when sweet potatoes root at the nodes, they don’t make very big roots. This leads me to wonder whether snipping the vine to separate various root clusters on the same plant could lead to an easy way to get big roots at every node without having to bother with transplanting?
In one of the other videos, I believe you mentioned you had a plant that was neglected that bloomed way more than two others with the same genotype which were well-watered. If I understood that correctly, maybe stress can trigger more flowering? (Maybe only in specific cultivars that have the right genes to behave that way?) If that’s possible, that’s a trait I may want to watch for. I’d enjoy having that trait in my population.
In two other videos, you showed a sweet potato that sorta-kinda climbed a little bit.
Did you get seeds to save from it? I’m curious about whether its descendants will inherit the ability to climb a little, especially if some are more enthusiastic and do it far more vigorously. (Laugh.) That would be cool.
You showed what the seed pods looked like, and yours looked a little different from mine. Mine are larger and more bulbous. Though that could just be because they contain more seeds than usual. The flowers are a much darker purple, too. Are those things variable among sweet potatoes, or are those a probable sign that I may have a different species?
I need to remember to take pictures of that plant, so I can show what I’m describing.
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Okay, here are some pictures that I just took!
I saw three finished capsules, so I took pictures of them and opened them. They look just like your sweet potato capsules in your videos, and contained only one seed each. So that first one may have just been larger and more bulbous because it contained more seeds.
In the second picture, there’s a green capsule that looks big and bulbous like the first one (which contained eight seeds).
The third and fourth pictures show the leaves.
Interestingly, there are no flowers today, which is odd because there’s been at least one every day for the past two months. However, I watered the plant yesterday for the first time in weeks. Coincidence?
The flowers were deeper hue than most sweet potato flowers, but the same red-purple color. Just not as light of a hue.
I checked ornamental morning glories, and it looks like blue-purple with pink centers is more common, like this:
My plant’s flowers were that deep of a hue, but they were the red-purple color that’s common to sweet potatoes.
Does it look like a sweet potato to you?
Oh, here’s another trait worth considering. It climbed! It wound itself around the stem of a fig tree that was growing next to it. I unwound it so I could tuck the vines into a pot (I figure if I get it some roots at the nodes before transplanting it to the greenhouse, it’ll suffer less transplant shock), but it did wind itself all the way up the stem and then dangled off down onto the ground after it reached the top.
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Hi do you have any seats to sell
Aww, that would be a bummer. Are you talking about Ipomoea purpurea specifically? I see some people online saying the leaves of that are edible, but none of the sources seem very reputable, so I’m assuming they’re not.
When I dig it up, I’ll see what I find root-wise. If it has tuberous roots, would that mean it’s a sweet potato for sure? Or do inedible morning glories sometimes have roots like that, too?
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To correct spelling in my last time I responded do you have any seeds for sale
Thank you very much. I’ll report back if it seems to have storage roots (or tubers – you were right to correct me on that).
As a side note, I finally figured out which species of morning glory was a massively invasive weed when I lived in Hong Kong! I saw this plant all over the place every day when I lived there. It grew everywhere, all year round:
The astonishing thing is that it’s apparently edible.
All those years of living alongside it, and I never had any clue.
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Likes to Climb is such an exciting plant. It would be neat if you can breed tasty clump-root sweet potatoes that can be trellised easily!
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That is so cool. Maybe one of the wild ancestor species had a climbing growth habit, and it can very occasionally turn up in the modern population? Or maybe it came from an accidental cross with another Ipomoea you’ve grown?
Either way, what a neat trait to play with. 
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I hope so, too!
Have you tasted the leaves of your ornamental ones? Even if they don’t make roots, I imagine the leaves could still be used for food.